ClariPhy Company Contact:                                                   ClariPhy Media Contact:

John O’Neill                                                                              Lauri Julian

Vice President, Marketing                                                          ClariPhy Public Relations

949-861-3074                                                                            949-715-3049

john.oneill@clariphy.com l.julian@mediaconnectpr.com

CLARIPHY COMMUNICATIONS PRESENTS 10G ETHERNET PHYSICAL LAYER COMPLIANCE TESTING FUNDAMENTALS AT OFC/NFOEC 2007

Software-based Compliance Testing Provides Low Cost Alternative,

Improves Performance and Reliability 

IRVINE, Calif., March 15, 2007 – ClariPhy Communications, Inc., a fabless semiconductor company specializing in high speed communications ICs, today announced that Dr. Norm Swenson, founder and CTO, will present a paper on the IEEE 802.3aq (10GBASE-LRM) adopted Transmitter Waveform and Dispersion Penalty (TWDP) test methodology at the OFC/NFOEC conference (www.ofcnfoec.org)  in Anaheim, California on March 25-29, 2007.

            Dr. Swenson will address how the incorporation of Electronic Dispersion Compensation (EDC) technology in optical networking presents new challenges in compliance testing.  The paper describes the 10GBASE-LRM TWDP test and procedure, discusses the motivation for this type of test, and provides supporting mathematical details of the underlying algorithm.

TWDP is a software-based testing methodology that provides significant advantages compared to more costly hardware-based alternatives that have historically been used. In contrast to testing an optical transmitter based on an arbitrary absolute metric, TWDP quantifies the residual impairment that remains after EDC is applied. TWDP allows the optical component manufacturer more flexibility to design the transmitter for optimal performance and reduced cost. Additionally, a software-based testing methodology provides equipment manufacturers with a more reliable, scalable and lower cost alternative for high volume testing.

 “From ClariPhy’s inception, we have focused on enabling low cost 10Gbit/s Ethernet on existing infrastructure,” said Dr. Norm Swenson, founder and CTO of ClariPhy Communications. “A test methodology that ensures interoperability among low-cost solutions was a major challenge that we have spent considerable effort addressing.”

Dr. Swenson will deliver his paper at the OFC/NFOEC 2007 conference on March 28, 2007 at 4:40 p.m. in room 303B of the Anaheim Convention Center. 

About ClariPhy

            ClariPhy Communications, Inc. is a fabless semiconductor company developing high-speed ICs targeting 10Gbit/s networks in enterprise backbone and enterprise data center environments. ClariPhy’s ICs enable IT management to significantly improve enterprise network performance and lower cost. ClariPhy has secured Series A financing led by Norwest Venture Partners (NVP), with participation from Onset Ventures, Allegis Capital and Pacific General Ventures. ClariPhy has executive offices in Irvine, California and a development center in Cordoba, Argentina.  For more information, please visit  www.clariphy.com.

###